CN109029508A - With ventilative, moisture-inhibiting and the flexible electronic skin of thermal conditioning performance and preparation method thereof - Google Patents
With ventilative, moisture-inhibiting and the flexible electronic skin of thermal conditioning performance and preparation method thereof Download PDFInfo
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- CN109029508A CN109029508A CN201810983371.4A CN201810983371A CN109029508A CN 109029508 A CN109029508 A CN 109029508A CN 201810983371 A CN201810983371 A CN 201810983371A CN 109029508 A CN109029508 A CN 109029508A
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- nano fibrous
- fibrous membrane
- electronic skin
- flexible electronic
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
- D04H1/728—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
Abstract
The invention discloses a kind of with ventilative, moisture-inhibiting and the flexible electronic skin of thermal conditioning performance and preparation method thereof, belongs to flexible sensor technical field.The conductive coating that the flexible electronic skin is covered on nanofiber film surface by nano fibrous membrane, not exclusively forms, conductive coating is supported on nanofiber film surface with the line style being closed or/and inc line style, and nano fibrous membrane is the elastic polyolefin copolymer nano fibrous membrane for having porous structure.The electronic skin that the present invention designs is on the basis of guaranteeing its own excellent pulling force/pressure sensing performance, due to the distinctive three-dimensional porous structure of polyolefine micro/nano-fibre film, elasticity and infrared transmission performance, and the design method that conductive coating is not completely covered, it ensure that preparing resulting electronic skin by it has good flexibility, ventilative, moisture-inhibiting and thermal conditioning performance.
Description
Technical field
The present invention relates to a kind of flexible electronic skins, belong to flexible sensor technical field, have more particularly to one kind
Ventilative, moisture-inhibiting and the flexible electronic skin of thermal conditioning performance and preparation method thereof.
Background technique
In recent years, with the rapid development of science and technology, Electronics Science and Technology are born with medical domain mixing together one
Kind is expected to novel sensor-electronic skin of replacement human skin, from scientific angle by electronic skin is exactly a kind of novel
Wearable biomimetic tactile sensor, it can be realized the artificial flexible electronic device of human tactile perceptional function.
Most of existing flexible electronic basal uses PDMS film, such as Chinese invention patent application (Shen Qing Publication
Number: CN108078543A, data of publication of application: 2018-05-29) a kind of preparation method of highly sensitive electronic skin is disclosed, it should
Electronic skin has polyvinyl alcohol-silver nanowires/graphene-PDMS sandwich structure, in PET base material by way of spraying
Surface forms the silver nanowires conductive network of one layer of mutually overlapping accumulation, and even application disperses on silver nanowires network again later
One layer of graphene mixed by large stretch of graphene and small pieces graphene, these graphenes are deposited between silver nanowires network or join
Lead to adjacent silver nanowires, further enhance the electric conductivity of conductive network, later, using the mode of spin coating in above-mentioned conductive mesh
Matrix of the network surface spin coating layer of polyethylene alcoholic solution as electronic skin, finally, after polyvinyl alcohol is dry, by composite membrane from
It is separated in PET film, which is transferred in baking oven, overturn surface, one layer of PDMS is deposited in the one side contacted with PET
Film has thus obtained a kind of electronic skin of sandwich structure.
For another example Chinese invention patent application (application publication number: CN107778480A, data of publication of application: 2018-03-09) is public
A kind of flexible electronic skin sensor and preparation method thereof is opened, wherein flexible electronic skin sensor includes that several pressure pass
Feel unit；Pressure sensitive unit by two panels flexible and telescopic ultra-thin PDMS film, be attached at respectively the ultra-thin PDMS film of two panels it
Between two plate electrodes, and be set between two plate electrodes composite pressure sensor film composition；If composite pressure sensing membrane by
Dry polyaniline hollow nanospheres and for connecting adjacent polyaniline hollow nanospheres multi-walled carbon nanotube composition, each pressure sensing
Unit utilizes plasma processor, and uses electrode pixel processing to form the sensing array in setting area.
Wherein, the substrate of the flexible electronic skin of above-mentioned two pieces application is PDMS film, and PDMS film is in the presence of ventilative, saturating
Wet and thermal conditioning performance difference problem.
For another example Chinese invention patent application (application publication number: CN107913067A, data of publication of application: 2018-04-17) is public
A kind of electronic skin and preparation method thereof based on native cellulose nanofiber is opened, by using suction filtration or Electrostatic Absorption method
The electrical-conductive nanometers material such as carbon nanotube, graphene, silver nanowires is fixed on bacteria cellulose (BC) nano fibrous membrane and is assigned
Tunica fibrosa conductive characteristic；Polyethylene film as dielectric layer is placed among the uniform conductive BC nano fibrous membrane of two panels thickness
Miniature stretchable, compressible capacitor is constituted, that is, the electronic skin based on native cellulose nanofiber is prepared.The application
The advantages of be for find replacement synthetic high polymer the better electronic skin of biocompatibility provide technical support, the disadvantage is that day
After adsorption electrical-conductive nanometer material, ventilative, moisture-inhibiting and thermal conditioning performance substantially reduce right cellulose nano-fibrous membrane,
The preparation section of this application is complicated simultaneously, is unfavorable for industrialization.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of simple process, it is low in cost, be suitable for industrialized production
With ventilative, moisture-inhibiting and the flexible electronic skin of thermal conditioning performance and preparation method thereof.
To achieve the above object, the invention discloses a kind of flexible electronic skin with ventilative, moisture-inhibiting and thermal conditioning performance
Skin, it is made of nano fibrous membrane, the conductive coating for having specific shape for being supported on the nanofiber film surface, described to lead
The surface of the nano fibrous membrane, the nanometer are set in a manner of electrocoat nanofiber film surface described in the endless all standing
Tunica fibrosa is the elastic polyolefin copolymer nano fibrous membrane for having porous structure.
Further, the specific shape is made of the line style being closed or/and inc line style.
Further, the specific shape is made of the line style being closed.
Further, the line style of the closure includes one of circular ring shape, circle or polygon.
Optimal, the line style of the closure is circular ring shape.
Optimal, in the conductive coating of nano fibrous membrane area load at least one circular ring shape.
Optimal, the line style of the closure is circle.
Optimal, the line style of the closure is rectangular.
Further, the specific shape is made of inc line style.
Further, the inc line style includes one of shaped form, broken line type or linear type.
Optimal, the inc line style is broken line type, is led in area load at least one broken line type of nano fibrous membrane
Electrocoat.
Optimal, in several broken line type conductive coatings of nano fibrous membrane area load, all broken line type conductive coatings
It arranges in a matrix fashion, there are spacing between each adjacent two broken line type conductive coating.
It is optimal, the inc line style be it is snakelike, conductive apply area load at least one of nano fibrous membrane is snakelike
Layer.
Optimal, the inc line style is linear, is led in area load at least one linear of nano fibrous membrane
Electrocoat.
The present invention prints method by silk screen brush or stencil methods, and the table of nano fibrous membrane is imprinted in a manner of endless all standing
Face avoids the channel of blocking nano fibrous membrane, to guarantee ventilative, moisture-inhibiting channel and thermal conditioning performance, is provided simultaneously with specific shape
Conductive coating due to having conductive path in inside, can guarantee smoothly conductive on the surface of nano fibrous membrane.
Further, the nano fibrous membrane with a thickness of 30~150 μm, the conductive coating with a thickness of 40~120 μ
M can guarantee it on the basis of ventilative, moisture-inhibiting and thermal conditioning performance, realize good conductive and pulling force/stress sensing.
It is optimal, the nano fibrous membrane with a thickness of 30 μm, the conductive coating with a thickness of 40 μm.
It is optimal, the nano fibrous membrane with a thickness of 40 μm, the conductive coating with a thickness of 45 μm.
It is optimal, the nano fibrous membrane with a thickness of 60 μm, the conductive coating with a thickness of 50 μm.
It is optimal, the nano fibrous membrane with a thickness of 90 μm, the conductive coating with a thickness of 60 μm.
It is optimal, the nano fibrous membrane with a thickness of 110 μm, the conductive coating with a thickness of 80 μm.
It is optimal, the nano fibrous membrane with a thickness of 120 μm, the conductive coating with a thickness of 95 μm.
It is optimal, the nano fibrous membrane with a thickness of 135 μm, the conductive coating with a thickness of 110 μm.
It is optimal, the nano fibrous membrane with a thickness of 150 μm, the conductive coating with a thickness of 120 μm.
Further, the nanofiber diameter of the elastic polyolefin copolymer nano fibrous membrane is in 500~700nm, hole
Diameter is distributed as 50~750nm, therefore, elastic polyolefin copolymer nano fibrous membrane originally do not absorb in infrared ray, thus to human body
Radiation of medium infrared has good permeability, meanwhile, the three-dimensional porous structure of elastic polyolefin copolymer nano fibrous membrane guarantees
The transmission of human skin surface's vapor and other gases, therefore, the flexible electronic skin have good ventilative, moisture-inhibiting and
Thermal conditioning performance.
Preferably, the nanofiber diameter of the elastic polyolefin copolymer nano fibrous membrane is in 610~680nm, aperture
It is distributed as 100~600nm.
Optimal, in 620nm, pore-size distribution is the nanofiber diameter of the elastic polyolefin copolymer nano fibrous membrane
150nm。
Optimal, in 620nm, pore-size distribution is the nanofiber diameter of the elastic polyolefin copolymer nano fibrous membrane
200nm。
Optimal, in 650nm, pore-size distribution is the nanofiber diameter of the elastic polyolefin copolymer nano fibrous membrane
350nm。
Optimal, in 660nm, pore-size distribution is the nanofiber diameter of the elastic polyolefin copolymer nano fibrous membrane
500nm。
Further, the material of the conductive coating is in conductive silver paste, metal nanometer line, carbon nanotube or graphene
It is a kind of.
Preferably, the metal nanometer line includes silver nanowires, copper nano-wire, Fe nanowire, cobalt nanowire or zinc oxide
Nano wire.
Optimal, the material of the conductive coating is conductive silver paste.
Optimal, the material of the conductive coating is silver nanowires.
Optimal, the material of the conductive coating is copper nano-wire.
In order to preferably realize technical purpose of the invention, the invention also discloses one kind, and there is ventilative, moisture-inhibiting and heat to adjust
The preparation method of the flexible electronic skin of performance is saved, it includes using centrifugal spinning, electrostatic spinning, melt spinning or wet spinning
One of preparation with a thickness of 30~150 μm of elastic polyolefin copolymer nano fibrous membrane, then by conductive material according to endless
The specific shape of all standing film surface is coated or covered on the surface of the elastic polyolefin copolymer nano fibrous membrane, dry,
Conductive coating is obtained with a thickness of 40~120 μm of flexible electronic skin.
Further, preparing elastic polyolefin copolymer nano fibrous membrane, detailed process is as follows:
First polyolefin copolymer is prepared using one of centrifugal spinning, electrostatic spinning, melt spinning or wet spinning to receive
Rice fiber, further utilizes mixture, ether, the tert-butyl alcohol, acetone or the isobutyl of organic solvent such as isopropanol and deionized water
One of alcohol prepares the elastic polyolefin copolymer nanofiber suspension of stable and uniform, so under ultra high shear effect
High pressure draught forming technique is utilized afterwards, prepares elastic polyolefin copolymer nano fibrous membrane.
Further, it will be led using one of vapor deposition, magnetron sputtering, galvanoplastic, physics coating or vacuum evaporation
Electric material is coated or covered with according to the specific shape of incomplete covering film surface in the elastic polyolefin copolymer nanofiber
The surface of film, wherein nanofiber film surface cannot be completely covered in conductive coating, advantageously ensure that the ventilative of nano fibrous membrane
Property, moisture-inhibiting channel and thermal conditioning performance.
The beneficial effects are mainly reflected as follows following aspects:
1, the basis material polyolefin copolymer nano fibrous membrane that the electronic skin that the present invention designs uses both has elasticity,
Infrared ray do not absorb again in, and the inside of polyolefin copolymer nano fibrous membrane has three-dimensional porous structure, meanwhile, using not
Conductive coating is supported on polyolefin copolymer nanofiber film surface by the design method being completely covered, and is guaranteeing to prepare institute by it
On the basis of the flexible electronic skin obtained itself has excellent pulling force/pressure sensing performance, also to human body radiation of medium infrared
With good permeability and excellent ventilative, moisture-inhibiting and thermal conditioning performance, the comfort of wearable flexible electronic skin is improved
And safety, there is huge application potential in wearable electronic devices field；
2, conductive coating by being distributed in the table of nano fibrous membrane by the preparation method that designs of the present invention according to specific shape
Face, design method simple and regular are suitable for industrialized production.
Detailed description of the invention
Fig. 1 is the top view of flexible electronic skin of the present invention；Wherein, label is as follows in Fig. 1:
Nano fibrous membrane 1, conductive coating 2.
Specific embodiment
The invention discloses a kind of flexible electronic skin with ventilative, moisture-inhibiting and thermal conditioning performance, it is by nanofiber
Film, the conductive coating composition for having specific shape for being supported on the nanofiber film surface, the conductive coating is with incomplete
The surface of the nano fibrous membrane is arranged in the mode for covering the nanofiber film surface, specifically, conductive coating is specific
Shape is made of the line style being closed or/and inc line style, it is preferred that the line style of the closure include circular ring shape, circle or
One of polygon, the inc line style include linear type, shaped form or broken line type, further preferred conductive coating
For broken line type, as shown in Figure 1, it is preferred that flexible electronic skin by nano fibrous membrane 1, and is supported on 1 surface of nano fibrous membrane
Broken line type conductive coating 2 form, to the flexible electronic skin carry out pressure sensing test, test result discovery, the flexibility
The lowest detection tensile deformation lower limit of electronic skin is 0.05%, and response time when applying stress is 10ms, when withdrawing from stress
Response time be 20ms, therefore the flexible electronic skin that is fabricated to of the nano fibrous membrane for having broken line type conductive coating have compared with
The good ability to pressure response；At the same time, Nanowire is supported on incomplete coverage mode due to broken line type conductive coating
Tie up film surface, remain nano fibrous membrane conduct heat outward, the ability of moisture-inhibiting and thermal conditioning.
The present invention it is also preferred that nano fibrous membrane is the elastic polyolefin copolymer nano fibrous membrane for having porous structure,
Wherein, the moisture-vapor transmission of elastic polyolefin copolymer nano fibrous membrane is 2840g/m2D, by elastic polyolefin copolymer
Nano fibrous membrane and ultra-thin PDMS film are covered each by after human skin (33.8 DEG C of moisture 39%, temperature) 15min, elastic polyene
Moisture of skin under hydrocarbon copolymer nano fibrous membrane is that 40%, temperature is 34 DEG C, and the moisture of skin under ultra-thin PDMS film is
47%, temperature is 34.4 DEG C, this shows that, using nano fibrous membrane of the invention, ventilative, moisture-inhibiting and thermal conditioning function are more preferable.
In order to better explain the present invention, below in conjunction with specific preparation method the present invention is furture elucidated it is main in
Hold, but the contents of the present invention are not limited solely to the preparation method of following embodiment.
Embodiment 1
Present embodiment discloses a kind of preparation method of flexible electronic skin with ventilative, moisture-inhibiting and thermal conditioning performance,
Specific preparation process is as follows:
3~5g elastic polyolefin thermoplastic elastomer (TPE) nanofiber is weighed, ultra high shear effect is taken to be dispersed in
In the organic solvent ether of 800~1000mL, elastic nano fibrous suspension is obtained, then forms skill using high pressure draught
Art takes 40~80mL elastic nano fibrous suspension to spray, and prepares the elastic polyolefin copolymer nanofiber with a thickness of 35 μm
Film.
It will be provided with the conductive silver paste material of electric conductivity using physics coating snakelike to be coated or covered with according to designed
The nanofiber film surface of above-mentioned preparation, drying, obtain conductive coating with a thickness of 40 μm, that is, finally obtain have it is ventilative, thoroughly
Wet and thermal conditioning performance flexible electronic skin, the moisture-vapor transmission of the flexible electronic skin is 2805g/m2D, will be flexible
Electronic skin and ultra-thin PDMS film are covered each by after human skin (33.8 DEG C of moisture 39%, temperature) 15min, flexible electronic skin
Moisture of skin under skin is that 41%, temperature is 34.03 DEG C, and the moisture of skin under ultra-thin PDMS film is that 47%, temperature is 34.4 DEG C.
Embodiment 2
Present embodiment discloses a kind of preparation method of flexible electronic skin with ventilative, moisture-inhibiting and thermal conditioning performance,
Specific preparation process is as follows:
3~5g elastic polyolefin thermoplastic elastomer (TPE) nanofiber is weighed, ultra high shear effect is taken to be dispersed in
In the organic solvent ether of 800~1000mL, elastic nano fibrous suspension is obtained, then forms skill using high pressure draught
Art takes 40~80mL elastic nano fibrous suspension to spray, and prepares the elastic polyolefin copolymer nanofiber with a thickness of 60 μm
Film.
It is coated or covered with using the silver nanowires material that physics coating will be provided with electric conductivity according to designed annular
The nanofiber film surface of above-mentioned preparation, drying, obtain conductive coating with a thickness of 45 μm, that is, finally obtain have it is ventilative, thoroughly
Wet and thermal conditioning performance flexible electronic skin, the moisture-vapor transmission of the flexible electronic skin is 2783g/m2D, will be flexible
Electronic skin and ultra-thin PDMS film are covered each by human skin (33.8 DEG C of moisture 39%, temperature) after 15min, flexible electronic
Moisture of skin under skin is that 42%, temperature is 34.16 DEG C, and it is 34.4 that the moisture of skin under ultra-thin PDMS film, which is 47%, temperature,
℃。
Embodiment 3
Present embodiment discloses a kind of preparation method of flexible electronic skin with ventilative, moisture-inhibiting and thermal conditioning performance,
Specific preparation process is as follows:
3~5g elastic polyolefin thermoplastic elastomer (TPE) nanofiber is weighed, ultra high shear effect is taken to be dispersed in
In the organic solvent ether of 800~1000mL, elastic nano fibrous suspension is obtained, then forms skill using high pressure draught
Art takes 40~80mL elastic nano fibrous suspension to spray, and prepares the elastic polyolefin copolymer nanofiber with a thickness of 80 μm
Film.
It is coated or covered with using the copper nano-wire material that physics coating will be provided with electric conductivity according to designed curved shape
In the nanofiber film surface of above-mentioned preparation, drying, obtain conductive coating with a thickness of 60 μm, that is, finally obtain have it is ventilative,
The flexible electronic skin of moisture-inhibiting and thermal conditioning performance, the moisture-vapor transmission of the flexible electronic skin are 2612g/m2D, will be soft
Property electronic skin and ultra-thin PDMS film are covered each by human skin (33.8 DEG C of moisture 39%, temperature) after 15min, flexible electrical
Moisture of skin under sub- skin is that 43%, temperature is 34.28 DEG C, and the moisture of skin under ultra-thin PDMS film is that 47%, temperature is
34.4℃。
Embodiment 4
Present embodiment discloses a kind of preparation method of flexible electronic skin with ventilative, moisture-inhibiting and thermal conditioning performance,
Specific preparation process is as follows:
3~5g elastic polyolefin thermoplastic elastomer (TPE) nanofiber is weighed, ultra high shear effect is taken to be dispersed in
In the organic solvent ether of 800~1000mL, elastic nano fibrous suspension is obtained, then forms skill using high pressure draught
Art takes 40~80mL elastic nano fibrous suspension to spray, and prepares the elastic polyolefin copolymer nanofiber with a thickness of 90 μm
Film.
It is coated or covered with using the carbon nano-tube material that physics coating will be provided with electric conductivity according to designed linear
In the nanofiber film surface of above-mentioned preparation, drying, obtain conductive coating with a thickness of 75 μm, that is, finally obtain have it is ventilative,
The flexible electronic skin of moisture-inhibiting and thermal conditioning performance, the moisture-vapor transmission of the flexible electronic skin are 2563g/m2D, will be soft
Property electronic skin and ultra-thin PDMS film are covered each by human skin (33.8 DEG C of moisture 39%, temperature) after 15min, flexible electrical
Moisture of skin under sub- skin is that 44%, temperature is 34.34 DEG C, and the moisture of skin under ultra-thin PDMS film is that 47%, temperature is
34.4℃。
Embodiment 5
Present embodiment discloses a kind of preparation method of flexible electronic skin with ventilative, moisture-inhibiting and thermal conditioning performance,
Specific preparation process is as follows:
3~5g elastic polyolefin thermoplastic elastomer (TPE) nanofiber is weighed, ultra high shear effect is taken to be dispersed in
In the organic solvent ether of 800~1000mL, elastic nano fibrous suspension is obtained, then forms skill using high pressure draught
Art takes 40~80mL elastic nano fibrous suspension to spray, and prepares the elastic polyolefin copolymer nanofiber with a thickness of 100 μm
Film.
It will be provided with the grapheme material of electric conductivity using physics coating rectangular to be coated or covered with upper according to designed
State the nanofiber film surface of preparation, dry, obtain conductive coating with a thickness of 80 μm, that is, finally obtaining has ventilative, moisture-inhibiting
And the flexible electronic skin of thermal conditioning performance, the moisture-vapor transmission of the flexible electronic skin are 2440g/m2D, by flexible electrical
Sub- skin and ultra-thin PDMS film are covered each by human skin (33.8 DEG C of moisture 39%, temperature) after 15min, flexible electronic skin
Moisture of skin under skin is that 45%, temperature is 34.36 DEG C, and the moisture of skin under ultra-thin PDMS film is that 47%, temperature is 34.4 DEG C.
Embodiment 6
Present embodiment discloses a kind of preparation method of flexible electronic skin with ventilative, moisture-inhibiting and thermal conditioning performance,
Specific preparation process is as follows:
3~5g elastic polyolefin thermoplastic elastomer (TPE) nanofiber is weighed, ultra high shear effect is taken to be dispersed in
In the organic solvent ether of 800~1000mL, elastic nano fibrous suspension is obtained, then forms skill using high pressure draught
Art takes 40~80mL elastic nano fibrous suspension to spray, and prepares the elastic polyolefin copolymer nanofiber with a thickness of 120 μm
Film.
It will be provided with the Fe nanowire material of electric conductivity using vapor deposition rectangular to be coated or covered with according to designed
The nanofiber film surface of above-mentioned preparation, drying, obtain conductive coating with a thickness of 108 μm, that is, finally obtain have it is ventilative, thoroughly
Wet and thermal conditioning performance flexible electronic skin, the moisture-vapor transmission of the flexible electronic skin is 2335g/m2D, will be flexible
Electronic skin and ultra-thin PDMS film are covered each by human skin (33.8 DEG C of moisture 39%, temperature) after 15min, flexible electronic
Moisture of skin under skin is that 46%, temperature is 34.38 DEG C, and it is 34.4 that the moisture of skin under ultra-thin PDMS film, which is 47%, temperature,
℃。
As can be seen from the above embodiments, the flexible electronic skin that the present invention designs is guaranteeing its own excellent pulling force/pressure
On the basis of sensing capabilities, due to the distinctive three-dimensional porous structure of polyolefine micro/nano-fibre film, elasticity and infrared transmission performance, lead
The design method that electrocoat is not completely covered ensure that preparing gained electronic skin by it has good flexibility, breathes freely, thoroughly
Wet and thermal conditioning performance, therefore it has preferable application prospect in field of intelligent wear.
Above embodiments are only best citing, rather than a limitation of the embodiments of the present invention.Except above-described embodiment
Outside, there are also other embodiments by the present invention.All technical solutions formed using equivalent substitution or equivalent transformation, all fall within the present invention
It is required that protection scope.
Claims (8)
1. a kind of flexible electronic skin with ventilative, moisture-inhibiting and thermal conditioning performance, it is characterised in that: it by nano fibrous membrane,
It is supported on the conductive coating composition for having specific shape of the nanofiber film surface, the conductive coating is with endless all standing
The surface of the nano fibrous membrane is arranged in the mode of the nanofiber film surface, and the nano fibrous membrane is to have porous knot
The elastic polyolefin copolymer nano fibrous membrane of structure.
2. having the flexible electronic skin of ventilative, moisture-inhibiting and thermal conditioning performance according to claim 1, it is characterised in that: institute
Specific shape is stated to be made of the line style being closed or/and inc line style.
3. having the flexible electronic skin of ventilative, moisture-inhibiting and thermal conditioning performance according to claim 2, it is characterised in that: institute
The line style for stating closure includes one of circular ring shape, circle or polygon, and the inc line style includes linear type, shaped form
Or one of broken line type.
4. having the flexible electronic skin of ventilative, moisture-inhibiting and thermal conditioning performance according to claim 1, it is characterised in that: institute
State nano fibrous membrane with a thickness of 30~150 μm, the conductive coating with a thickness of 40~120 μm.
5. having the flexible electronic skin of ventilative, moisture-inhibiting and thermal conditioning performance according to claim 1, it is characterised in that: institute
The nanofiber diameter for stating elastic polyolefin copolymer nano fibrous membrane is 500~700nm, and pore-size distribution is 50~750nm.
6. the according to claim 1 or 2 or 3 or 4 or 5 flexible electronic skins with ventilative, moisture-inhibiting and thermal conditioning performance,
Be characterized in that: the material of the conductive coating is one of conductive silver paste, metal nanometer line, carbon nanotube or graphene.
7. there is the preparation method of the flexible electronic skin of ventilative, moisture-inhibiting and thermal conditioning performance described in a kind of claim 1, it is special
Sign is: it include using the preparation of one of centrifugal spinning, electrostatic spinning, melt spinning or wet spinning with a thickness of 30~
150 μm of elastic polyolefin copolymer nano fibrous membrane, then by conductive material according to the specific shape of incomplete covering film surface
Be coated or covered on the surface of the elastic polyolefin copolymer nano fibrous membrane, it is dry, obtain conductive coating with a thickness of 40~
120 μm of flexible electronic skin.
8. there is the preparation method of the flexible electronic skin of ventilative, moisture-inhibiting and thermal conditioning performance according to claim 7, it is special
Sign is: coated using vapor deposition, magnetron sputtering, galvanoplastic, physics or one of vacuum evaporation by conductive material according to
The specific shape of not exclusively covering film surface is coated or covered on the surface of the elastic polyolefin copolymer nano fibrous membrane.
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| CN201810983371.4A CN109029508B (en) | 2018-08-27 | 2018-08-27 | Flexible electronic skin with ventilation, moisture permeability and thermal regulation performance and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110565176A (en) * | 2019-06-04 | 2019-12-13 | 中国科学院苏州纳米技术与纳米仿生研究所 | Temperature-adjustable fabric based on carbon nano tube and preparation method thereof |
| CN111430062A (en) * | 2020-04-03 | 2020-07-17 | 香港理工大学 | Elastic conductor composite film and preparation method thereof |
| CN113997663A (en) * | 2021-10-30 | 2022-02-01 | 苏州大学 | Flexible electrode with moisture absorption, sweat releasing, ventilation and antibacterial functions and preparation method and application thereof |
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